Facile green synthesis of l-methionine capped magnetite nanoparticles for adsorption of pollutant Rhodamine B
作者： Neway Belachew , D. Rama Devi , K. Basavaiah
DOI: 10.1016/J.MOLLIQ.2016.10.089
关键词: Superparamagnetism 、 Inorganic chemistry 、 Fourier transform infrared spectroscopy 、 Sorption 、 Materials science 、 Chemisorption 、 Rhodamine B 、 Coprecipitation 、 Adsorption 、 Langmuir adsorption model
摘要: Abstract Surface modified magnetite nanoparticles (Fe3O4 NPs) were synthesized by the one pot co-precipitation method using l -methionine ( -Met) as a capping agent. As Fe3O4 NPs have been characterized UV–Visible spectroscopy, FTIR powder XRD, SEM-EDX and TEM. Magnetic property of -Met capped was investigated vibrating sample magnetometer (VSM). The XRD results indicated that formation pure phase NPs. spectroscopic (FTIR UV- Vis spectroscopy) further confirm effective -Met. VSM curve clearly depicts superparamagnetic behavior with saturation magnetization value 65 emu/g. kinetic studies for Rhodamine B (RhB) adsorption showed rapid within first 40 min sorption process best linear fitted to second-order model, suggesting chemisorption mechanism. Dye equilibrium data well Langmuir isotherm.
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